Calvin h



(No Model.)

0. H. NORRIS. TUYERE.

No. 400,000. Paten0ed'Sept. 22, 1891.

W/T/VESSES: llVl/E/VTOI? a #44 10; (I

ATTORNEY.

UNITED STATES PATENT OFFICE.

CALVIN H. NORRIS, OF CANTON, OHIO, ASSIGNOR OF ONE-HALF TO GEORGE F.KNIGHT, OF SAME PLACE.

T U Y E R E SPECIFICATION forming part of Letters Patent No. 460,060,dated September 22, 1891.

I Application filed December 5, 1890. Serial No. 373.653. (No model) Toall whom it may concern:

Be it known that I, CALVIN H. NORRIS, a citizen of the United States,and a resident of Canton, in the county of Stark and State of Ohio, haveinvented a new and useful Improvement in Tuyeres, of which the followingis a full, clear, and exact description, refer ence being had to theaccompanying drawings, making part of this specification.

to My invention relates to an improvement in tuyeres; and it consists incertain features of construction and combination of parts, as will behereinafter described, and pointed out in the claim.

[5 Figure 1 of the accompanying drawings is a perspective of a tuyere,illustrating my invention; Fig. 2, a side elevation; Fig. 3, a verticalsection longitudinally through the center; Fig. 45, an end elevation;Figs. 5 and 6, perspectives of the grate and valves, and

Fig. '7 a perspective of metal lining.

Similar letters of reference indicate corresponding parts in all of thefigures of the drawings.

A represents the bottom plate, which rests on the bottom or floor of theforge, the downwardly-projected bottomless box portion 13 projectedthrough the bottom of the forge. The plate A is provided with a centralper- 0 foration, O communicating with the box portion B. In one of thesides of the box portion 13 is provided two elongated apertures a, b invertical order, the length of said apertures being the full width of theinside of the 5 box B. A grate E is provided to slide into the aperturea and a valve or closing slide F into the aperture Z). The shankportions of said grate and valve are pivotally secured to a handleportion G, by which the valve F, 40 which forms a bottom for the box Band the grate E, may be simultaneously drawn to allow the ashes thathave fallen through the grate to fall from the box and to open the Thehandle portion G,

tuyere for cleaning.

being pivotally secured to the grate and valve, as shown at d, may beturned to one side under the side of the forge out of the way. At theside of the box portion B is provided a pipe portion H, extending intothe box, into the outer end of which is placed the nose of thewind-pipe.

On the top of the plate A is placed a refractory tile J, having acentrally-located conical aperture K, the small end of said apertureplaced about the aperture 0 of the plate A, the large end or portion ofsaid aperture upward. A renewable metal lining L is provided, the loweror small end portion adapted to rest inside of the perforation O in theplate A, the upper portion to rest against the sides of the perforationK in the tile J.

The advantage of a tuyere constructed as hereinbefore described will beapparent to all persons familiar with the use of this class of tuyeres,because of the ease by which a clean fire may at all times be maintainedand the convenient and inexpensive manner in renewing effected by thefire.

Having thus fully described the nature and object of my invention, whatI claim as new, and desire to secure by Letters Patent, is

In combination with the plate A, having a downwardly-projectedopen-bottom box portion B, having apertures a and b, of the grate E,valve F, handle G, a refractory tile having a conical aperture tocorrespond with an aperture in the plate A, and a renewable metal liningadapted to rest in the perforation O in the plate A and against thesides of the apertu re K in the tile J, substantially as described, andfor the purpose set forth.

In testimony whereof I have hereunto set my hand this 2d day ofDecember, A. D. 1890.

CALVIN H. NORRIS.

XVitnesses:

W. K. MILLER, CHAS. R. MILLER.

